System information

404 Logical Partitions on System i5
Migration considerations when moving to HMC
The following steps outline some of the planning considerations for migrating off of the Virtual
Partition Manager to HMC managed Linux partitions. Please note that you cannot save and
restore partition configuration data; instead, you must create them in their entirety. However,
you do not need to recreate your data saved in Linux partitions through the Network Server
Storage Space. Point to the same virtual SCSI and virtual I/O resources when partitions are
defined through HMC:
1. Power off all of the Linux partitions.
2. Start SST or DST, and select the option to Work with system partitions.
If you do not already have your LVT prints, you may want to take note of the resource
allocations you have for each of your Linux partitions such as CPU, memory, Min/Max
values, number of virtual Ethernet LANs, and the eWLM settings. Keep in mind that you
cannot print the configuration data through any report from the Virtual Partition Manager
displays.
3. Clear the Linux partition configurations using option 4 from the Work with System
Partitions display. The Recovery Partition Configuration screen appears.
4. Select option 7. Clear partition configuration data.
5. IPL your server after clearing the partition configuration data.
6. Connect HMC to your server.
7. Create a new profile for the Linux partition that contains the physical I/O, memory, and
processors desired.
8. Perform the following actions for each Linux partition:
– Create a Virtual SCSI Server adapter in the i5/OS partition.
– Create a Virtual Serial client adapter in the i5/OS partition that points to the Virtual
serial Server in the Linux partition in slot 0.
– Create a new partition for Linux. You want to place the Virtual SCSI Client adapter in
Virtual slot 2 because data in the NWSD points to this location.
– Create any Virtual Ethernet devices you had in the Linux partition.
– Make the Linux partition's power controlling partition to be the i5/OS partition.
– Power on and Power off the Linux partitions. This drives the configuration down to the
hypervisor.
9. Vary on the NWSD in the i5/OS partition.
13.6 Establishing network connectivity for Linux partitions
This chapter provides the steps for configuring support in the i5/OS partition for exposing the
virtual LAN connections of the Linux partitions to an external network via a physical network
connection in the i5/OS partition.
One method you can use for bridging virtual network connections to an external network is
through the use of Proxy ARP. With Proxy ARP, the physical network adapter of the i5/OS
partition responds to all network requests within a defined range and then routes those
addresses to the virtual LAN segment.
Note: There are multiple ways to configure virtual network access to a physical network
including Proxy ARP, Network Address Translation, and Static Routing via a Linux
partition. This document only presents setup instructions for the Proxy ARP method.